Adjusting device for locomotive driving-boxes.



PATENTED JAN. 21, 1908.

w. o. DICK.

. ADJUSTING DEVICE FORLOOOMOTIVE DRIVING-BOXES.

APPLICATION FILED JUNE 5. 1907.

III/I/I/IIIIIlI/IIII/l/A line w-ac of Fig. 2.

STA

UNITE WILLIAM C. DICK, OF

FFICE.

ATENT EIGH, OF FREEPORT, ILLINOIS.

ADJUSTING DEVICE FOR LOCOMOTIVE DRIVING-BOXES.

Specification of Letters Patent.

Patented Jan. 21, 1908.

Application filed June 5. 1907. Serial No, 377.396.

T 0 all whom it may concern:

Be it known that I, WILLIAM C. DICK, a citizen of the United States, residing at Freeport, in the county of Stephenson and State of Illinois, have invented a new and useful Adjusting Device for Locomotive Driving- Boxes, of which the following is a specification.

' The invention relates to improvements in adjusting devices for locomotive driving boxes.

The object of the present invention is to improve the construction of the means for adjusting locomotive driving boxes, and to pro vide a simple and eflicient construction of increased strength and durability adapted to ermit the wedge'of a locomotive driving box to be adjusted from the outside of the locomotive, without the danger and inconvenience of crawling beneath the locomotive to effect such adjustment.

A further object of the invention. is to provide adjusting means of this character capable of enabling lost motion between the forward and rearward pedestal jaws to be readily taken up and provided with means for preventing the adjusting devices from becoming rapidly worn.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing :Figure 1 is a side view of a portion of a locomotive frame provided with driving box adjusting means, constructed in accordance with this invention. Fig-2 is a sectional view, taken longitudinally of the locomotive frame. Fig. 3 is a vertical sectional view, taken substantially on the Fig. 4 is a detail perspective view of the adjustable wedge. Fig. 5 is a detailperspective view of the yoke. Fig. 6 is a detail view of the pedestal braces.

Like numerals of reference designate corresponding parts in all the figures of the drawing.

1 designates a portion of a locomotive frame, provided with pedestal jaws 2 and 3,

and adapted to receive a driving box of any preferred construction. A shoe 4 of the ordinary construction is fitted against the jaw 2 and is provided at opposite sides with flanges 5 to prevent lateral movement. The shoe 1 is retained in place by a screw 6, piercing the pedestal jaw and engaging a threaded perforation of the shoe. The other pedestal jaw 3 receives a Wedge 7, adapted to be adjusted to take up lost motion between the pedestal jaws, and provided at opposite sides with flanges 8 to prevent lateral motion. The wedge is provided at its lower end with an opening 9, and it has a slot 10 at the bottom of the opening. The opening 9 receives a head 11 of a yoke 12, which surrounds a thimble pedestal brace 13. The head 11, which is connected with the upper end of the yoke by a neck 14, is preferably .circular in cross section and the opening 9,

which receives the head, is also circular in cross section to conform to the configuration of the same. The neck 14 fits in the slot 10, which communicates with the opening 9. By this construction, the yoke is interlocked with the lower end of the wedge and is engaged with and disengaged from the wedge by a relative transverse movement, when the parts are detached from the locomotive frame.

, The yoke is provided at its lower end with a threaded opening 15 for the reception of an adjusting screw 16, having a lower polygonal wrench-receiving portion 17 and provided at its upper end with a head 18, which engages a socket 19 of the pedestal brace 13. The pedestal brace 13, which consists of a sleeve or thimble, extends across the space between the lower ends of the pedestal jaws and is arranged on a bolt 20, which pierces the jaws, as clearly illustrated in Fig. 2 of the drawing. The bolt 20 is provided at one end with a head, and has a pair of nuts 21 at its threaded end, which are prevented from becoming lost by a key 22.

The socket of the pedestal brace is located in the vertical plane of the wedge, and it is formed by a pair of depending substantially L-shaped walls or flanges 23, connected at their inner ends by a transverse wall 24:, the outer endof the socket being open and the inner end being closed, but both ends of the socket may be open, as the wall 24 simply strengthens the construction. The socket, which is substantially T-shaped in cross prevent either-the screw or the-walls of the socket from becoming worn. Also the washer:

by resting-upon the bottom portions of the sidefwalls or flanges 23 spansthe space he wedge, and an adjusting screw interlocked with the pede'stal brace and engaging the tween thesame and forms a continuous bears ing for thehead of the screw. I/Vhen the,

washer becomes worn, itmaybe readily re-:

moved and replaced by a newwasher.

Theadjusting-screw receives a lock nut 27, arranged to engage the lower end of theyoke tomprevent thescrew from accidentally unscrewing. By means of a ratchet wrench, the screw 16 and the wed e may be con veniently I adjusted from t e outside of a locomotive, without getting beneath the same, and as the yoke surrounds and receives the pedestal braces," it is unnecessary to pierce the latter for the adjusting screw;

Having thus f-ully described my invention, what I claim as: new and desire to secure by- Letters Patent, is

1. In a device of'the classdescribed, the box adjusting wedge, a pedestal brace,-a yoke surrounding combination of a driving thepedestalbrace and interlocked with the yoke for raising and lowering the =wedge.

2. In a device of the classdescribed, the vcombination of a driving boX adjusting wedge, a pedestal brace, a yoke surrounding the pedestal brace and. having its upper end and'connected at the top with the wedge,

said yoke and wedgehaving interfitting engaging parts detachable from each other by opening'and having a slot communicating therewith,a pedestal brace, a yokesurroundemcee ing the pedestal brace and provided at the top witha head detachably fitted in the opening of the wedge and connected with the yoke'by a neck portion, which is arranged in the said slot,and adjusting means for the yoke.

5. In a device of the class described, the combination of a wedge provided with an opening, a pedestal brace having a socket at the bottom, a yoke surrounding the pedestal brace and provided at the top with a project- I ing portion fitting in the openingof the wedge, and an adjusting screw engaging the bottom of theyoke and having a head fitted in the-- socket of the pedestal brace.

6. In a device of-the classdescribed, "the combinationof-a' wedge,a pedestalbrace provided at the bottom with a socket, a yoke I surrounding thepedestal brace and detachably interlocked at the top with 'thewedgey and an adjusting screw engaging the bottomof the yoke and provided with a head fitted in the socket,whereby-it is detachably inter lockedwith the brace;

7. In a device of theclass-described, the combination of a wedge, a pedestal brace I provided at the bottom with a socket consiste ing of spacedsubstantially L-shaped flanges,- and a transverse wall connecting the inner ends oftheflanges, a yoke surrounding the-- pedestal brace and detachably interlockedwith the wedge, and anadjusting screw engaging the bottom of theyoke and having a head fitted in the socket.

8. In a device of theclass-described, the combination of-a wedge, a pedestal brace provided with-a socket composed of spaced walls having supporting bottom portions, a yoke connected-with the wedge and surrounding-the pedestal brace,-a screw engaging thebottom of the yoke and havingits head fitted in the socket, and a washer fitted on the' addetachably interlocked with the lower end of the wedge; and a screwtor adjusting the yokes 3. In a device of the-class described, the i combination with pedestal jaws, of a pedes-- tal brace connecting the-jaws, an adjustable wedge, a yoke surrounding the pedestal bracejustingscrew beneath the head and spanning the space between the side walls of the socket.

9. Ina deviceof the class described, the" combination of a wedge, a pedestal brace,-a yoke surrounding the pedestalbrace and-con- 'nectedwith the wedge at the lower endthere of, and an adjusting screw interlocked with the pedestal brace and engaging the bottom of the yoke.

In testimony, that I claimthe foregoing-as my own, I have hereto affixed my signature in the presence of two witnesses.

WILLIAM C; DICK. Witnesses:

B. E. DANA,

W. E. BENNETHUM. 

